graduated cylinder‚ 50 mL graduated cylinder‚ small and large test tube‚ 50 mL and 150 mL beakers‚ 50 mL Erlenmeyer flask‚ digital top-loading balance‚ unknown liquids for density determination‚ irregular solids for density determination‚ safety glasses‚ Lab manual that was used for measurement. Introduction The International System of Measurement (SI) is used worldwide and has been adopted as the official system of measurement by most countries. It is commonly called the metric system. Our traditional
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things‚ that if the force of the egg doesn’t have something to fall into‚ like cotton or balloons‚ then it will break‚ because the force needs to be shared or it takes over the egg. With that‚ I understood a basis of how the device should be. This lab is designed to be very innovative with making devices so that nature can be defied. An egg that is supposed to break on contact from seven meters up will be safe and won’t break. The egg drop showcases endless laws of physics‚ and it also encourages
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Introduction: Mitosis occurs in all eukaryotic cell tissues and produces genetically identical daughter cells with a complete set of chromosomes. In humans‚ mitosis produces somatic cells that are diploid‚ which means they contain two non-identical copies of each of the twenty-three chromosomes. One copy is derived from the person’s mother and the other from the person’s father. Meiosis‚ on the other hand‚ occurs only in testis and ovary tissues‚ producing sperm and ova (eggs). The gametes that
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go through the whole process of osmosis. Also‚ a lot of the experiment was rushed as we were under pressure to finish as quickly as possible. Unfortunately the time constraint was caused by and outside influence unrelated to the lab itself‚ and so next time we could do a lab under normal conditions where there are no outside disturbances. There were weight differences in the potatoes which could have caused thicker potatoes to absorb more than others. It was a little impossible to obtain the same
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were streaked onto MYPGP agar to further isolate P. larvae. The pale colonies that grew on those plates were subjected to a 3% potassium hydroxide test. No signs of cell lysis was present; therefore‚ P. larvae was isolated. Isolating DNA from the Pure Colonies Grown In addition‚ DNA were isolated from the colonies grown and its concentration was 33.6 ng/uL and the A260/280 value was 1.84. Next‚ an agarose gel electrophoresis was conducted to see if any DNA fragments were present. A band was visible
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leisurely over the gradient) of molecules and the surface area of the molecules (the smaller the surface area‚ the more the molecules are delimited to move across the gradient‚ causing osmosis to slow down). In addition‚ pure water is always hypotonic solution‚ meaning that the pure water will cross the vegetables’ semipermeable membrane and level the concentration on both sides. Nevertheless‚ isotonic solutions eventuate when the two solutions emulate each other at equilibrium‚ and hypertonic solution
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It is necessary to recrystallize it in order to obtain pure Zn(C5H7O2)2.H2O. To do this‚ prepare a solution of acetone and distilled water that contains 35 mL of acetone plus 15 mL of water and add 1 mL of acetylacetone to it. The acetylacetone serves to prevent decomposition of the product. Finally‚ add
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Unknown Lab Report April 25th‚ 2006 Introduction The purpose of this lab was to identify two unknown bacteria cultures using various differential tests. The identification of these unknown cultures was accomplished by separating and differentiating possible bacteria based on specific biochemical characteristics. Whether the tests performed identified specific enzymatic reactions or metabolic pathways‚ each was used in a way to help recognize those specifics and identify the unknown cultures
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The underlining purpose of the experiment was to show that error is ok as long as you know what the flaws are and be able to explain they happened. The lab involved burning a Marshmallow‚ a CHEEZ-IT‚ a Cheeto‚ and A Chex. The heat from the burning snack food is then carried into the H2O and used to calculate the energy content. An improvement that could be made was a replacement for the paperclip; it was
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Bromination Solo Experiment 3 – Individual Lab Report (Save as pdf and submit‚ due by 12:00 NOON one week after experiment) Last Name: First Name: TA Name: Date Lab Performed: Date Lab Submitted: Group A‚ B‚ or C: Comments for Grading TA: (Please indicate if you performed the lab on a day other than your regularly scheduled day and/or with a TA other than your regular TA). Page Limit: report must not exceed FIVE pages (including this page) LIMIT DOES NOT INCLUDE ANY GRAPHS‚ SPECTRA
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